Statistics – Applications
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa41a1716z&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SA41A-1716
Statistics
Applications
[2437] Ionosphere / Ionospheric Dynamics, [2443] Ionosphere / Midlatitude Ionosphere
Scientific paper
TIMED/GUVI often observed enhanced emissions in the 135.6 nm over the mid-latitude night-side ionosphere during the current solar minimum (2008-2010). These enhancements usually lasted for days, but they were weak (a few Rayleigh). They were associated with magnetic quiet (Kp ~0-1) or moderate active(Kp~2-4) conditions. The simultaneous GUVI N2 LBHS and LBHL data did not show the enhancements. This indicates that no precipitating particles or conjugated photo electrons were associated with the enhancements. The enhanced 135.6 nm intensities were very likely due to enhanced ionosphere density ( O+ and e recombination). Details on the enhancement features, possible generation mechanism and applications will be discussed. Figure 1. TIMED/GUVI night-side (solar zenith angle > 110) 135.6 nm (red color) and N2 LBHS (blue color) intensities for the orbit that crossed the longitude of 131 at equator on March 13, 2010. Two equatorial arcs are seen around the latitude of 0 in the 135.6 nm data. There is also an enhancement in the 135.6 nm intensity around latitude of 35 (marked by a black arrow). The LBHS intensity is plotted for reference. The rapid increase of the intensities at the left and right edge of the plot was due to auroral emission.
Kil Hyosub
Paxton Larry J.
Talaat Elsayed R.
Zhang Yajing
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